ALPS ELECTRIC, distributed by RC Microelectronics, gives us a schematic but clear explanation:
What is the difference between a potentiometer and an encoder?.
How are encoders classified: contact, magnetic, optical, or incremental and absolute? What advantages does each type offer?
How to use an Incremental Encoder and how to interpret its signals (definition, resolution, phase difference) and the direction of rotation CW or CCW, the number of stops.
What noise patterns can we find in a mechanical contact encoder (chattering, bounce, slip noise) and how to filter them.
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ALPS ELECTRIC has a wide portfolio of Encoders, which can be classified by their structure.
Lousy here to access the ALPS Encoder portfolio

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